package com.qingcheng.controller;


import com.alibaba.dubbo.config.annotation.Reference;


import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.alibaba.fastjson.serializer.SerializerFeature;
import com.qingcheng.pojo.goods.Category;
import com.qingcheng.pojo.goods.Goods;
import com.qingcheng.pojo.goods.Sku;
import com.qingcheng.pojo.goods.Spu;
import com.qingcheng.service.goods.CategoryService;
import com.qingcheng.service.goods.SpuService;
import com.qingcheng.service.goods.TemplateService;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RestController;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.context.Context;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@RestController
@RequestMapping("/item")
public class ItemController {
    @Reference
   private   SpuService spuService;

    @Autowired
   private   TemplateEngine templateEngine;

    @Value("${pagePath}")
    private  String    pagePath;
    @Reference
    private CategoryService categoryService;
    @GetMapping("/item")
    public String   itemPage(String spuId){
        return "item";
    }

    @GetMapping("/createPage")
    public void createPage(String spuId){

        //1：商品基本信息
        Goods goods = spuService.findGoodsById(spuId);
        System.out.println(goods);
        //spu
        Spu spu = goods.getSpu();
        //sku
        List<Sku> skuList = goods.getSkuList();

        //分类信息
        List<String> categoryList=new ArrayList<>();
        categoryList.add(categoryService.findById(spu.getCategory1Id()).getName());
        categoryList.add(categoryService.findById(spu.getCategory2Id()).getName());
        categoryList.add(categoryService.findById(spu.getCategory3Id()).getName());
        //先组装 url
        Map urlMap  = new HashMap<>();
        for (Sku sku : skuList) {
            //url

            String specJson = JSON.toJSONString(JSON.parseObject(sku.getSpec()), SerializerFeature.MapSortField);
            urlMap.put(specJson,sku.getId()+".html");

        }

        //循环生成sku页面
        for (Sku sku : skuList) {
            //2:thymeleaf 静态页面封装数据
            Context context = new Context();
            Map<String, Object> dataModel = new HashMap<String, Object>();
            dataModel.put("spu",spu);
            dataModel.put("sku",sku);
            dataModel.put("categoryList",categoryList);
            dataModel.put("skuImages",sku.getImages().split(","));//sku图片列表
            dataModel.put("spuImages",spu.getImages().split(","));//spu图片列表


            //规格列表
            Map paraItems= JSON.parseObject(spu.getParaItems());
            dataModel.put("paraItems",paraItems);
            //参数列表
            Map specItems = JSON.parseObject(sku.getSpec());
            dataModel.put("specItems",specItems);



            //规格面板
            Map<String,List> specMap=(Map)JSON.parseObject(spu.getSpecItems());

            for (String key : specMap.keySet()) {
                List<Map> mapList = new ArrayList<>();
                List<String> list = specMap.get(key);
                for (String value :list){
                    Map map = new HashMap();
                    map.put("option",value);

                    if (specItems.get(key).equals(value)){
                        map.put("checked",true);
                    }else {
                        map.put("checked",false);
                    }
                    Map<String,String> spec=(Map)JSON.parseObject(sku.getSpec());//当前的sku
                    //url
                    spec.put(key,value);
                    String specStr = JSON.toJSONString(spec, SerializerFeature.MapSortField);

                    map.put("url",urlMap.get(specStr));
                    mapList.add(map);
                }
                specMap.put(key,mapList);
            }

            dataModel.put("specMap",specMap);
            context.setVariables(dataModel);
            //3：生成页面
            try {
                File dir =new File(pagePath);
                if( !dir.exists()){
                    dir.mkdirs();
                }
                File dest= new File(dir, sku.getId()+".html" );
                PrintWriter writer = new PrintWriter(dest,"UTF-8");
                templateEngine.process("item",context,writer);
                System.out.println("生成页面："+sku.getId()+".html");
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }

        }

    }




}
